please help me, i just installed libvirt-git and qemu-git to my gentoo os. when i start libvirtd, then type virsh list , it has no response. hangs forever. following is my typed cmd: $>LIBVIRT_DEBUG=1 libvirtd .................. 2013-04-09 08:39:03.649+0000: 17021: debug : virFileClose:72 : Closed fd 19 2013-04-09 08:39:03.649+0000: 17021: debug : virFileClose:72 : Closed fd 21 2013-04-09 08:39:03.649+0000: 17021: debug : virArchFromHost:174 : Mapped x86_64 to 28 (x86_64) 2013-04-09 08:39:03.649+0000: 17021: debug : virArchFromHost:174 : Mapped x86_64 to 28 (x86_64) 2013-04-09 08:39:03.649+0000: 17021: debug : virArchFromHost:174 : Mapped x86_64 to 28 (x86_64) 2013-04-09 08:39:03.649+0000: 17021: debug : virArchFromHost:174 : Mapped x86_64 to 28 (x86_64) 2013-04-09 08:39:03.649+0000: 17021: debug : virArchFromHost:174 : Mapped x86_64 to 28 (x86_64) 2013-04-09 08:39:03.649+0000: 17021: debug : virArchFromHost:174 : Mapped x86_64 to 28 (x86_64) 2013-04-09 08:39:03.649+0000: 17021: debug : virQEMUCapsCacheLookup:2620 : Creating capabilities for /usr/bin/qemu-system-x86_64 2013-04-09 08:39:03.649+0000: 17021: debug : virObjectNew:201 : OBJECT_NEW: obj=0x7fa398095cd0 classname=virQEMUCaps 2013-04-09 08:39:03.649+0000: 17021: debug : virQEMUCapsInitQMP:2357 : Try to get caps via QMP qemuCaps=0x7fa398095cd0 2013-04-09 08:39:03.649+0000: 17021: debug : virCommandRunAsync:2205 : About to run LC_ALL=C PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/opt/bin:/usr/x86_64-pc-linux-gnu/gcc-bin/4.7.2:/opt/nvidia-cg-toolkit/bin:/opt/cuda/bin HOME=/root USER=root LOGNAME=root /usr/bin/qemu-system-x86_64 -S -no-user-config -nodefaults -nographic -M none -qmp unix:/var/lib/libvirt/qemu/capabilities.monitor.sock,server,nowait -pidfile /var/lib/libvirt/qemu/capabilities.pidfile -daemonize 2013-04-09 08:39:03.650+0000: 17021: debug : virFileClose:72 : Closed fd 18 2013-04-09 08:39:03.650+0000: 17021: debug : virFileClose:72 : Closed fd 20 2013-04-09 08:39:03.650+0000: 17021: debug : virFileClose:72 : Closed fd 22 2013-04-09 08:39:03.650+0000: 17021: debug : virCommandRunAsync:2210 : Command result 0, with PID 17095 2013-04-09 08:39:03.650+0000: 17095: debug : virFileClose:72 : Closed fd 3 2013-04-09 08:39:03.650+0000: 17095: debug : virFileClose:72 : Closed fd 4 2013-04-09 08:39:03.650+0000: 17095: debug : virFileClose:72 : Closed fd 5 2013-04-09 08:39:03.650+0000: 17095: debug : virFileClose:72 : Closed fd 6 2013-04-09 08:39:03.650+0000: 17095: debug : virFileClose:72 : Closed fd 7 2013-04-09 08:39:03.650+0000: 17095: debug : virFileClose:72 : Closed fd 8 2013-04-09 08:39:03.650+0000: 17095: debug : virFileClose:72 : Closed fd 9 2013-04-09 08:39:03.650+0000: 17095: debug : virFileClose:72 : Closed fd 10 2013-04-09 08:39:03.650+0000: 17095: debug : virFileClose:72 : Closed fd 11 2013-04-09 08:39:03.650+0000: 17095: debug : virFileClose:72 : Closed fd 12 2013-04-09 08:39:03.650+0000: 17095: debug : virFileClose:72 : Closed fd 13 2013-04-09 08:39:03.650+0000: 17095: debug : virFileClose:72 : Closed fd 14 2013-04-09 08:39:03.650+0000: 17095: debug : virFileClose:72 : Closed fd 15 2013-04-09 08:39:03.650+0000: 17095: debug : virFileClose:72 : Closed fd 16 2013-04-09 08:39:03.650+0000: 17095: debug : virFileClose:72 : Closed fd 17 2013-04-09 08:39:03.650+0000: 17095: debug : virFileClose:72 : Closed fd 19 2013-04-09 08:39:03.650+0000: 17095: debug : virFileClose:72 : Closed fd 21 In another terminal i type : $>gdb virsh GNU gdb (Gentoo 7.5.1 vanilla) 7.5.1 Copyright (C) 2012 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "x86_64-pc-linux-gnu". For bug reporting instructions, please see: <http://bugs.gentoo.org/>... Reading symbols from /usr/bin/virsh...done. (gdb) run -c qemu:///system Starting program: /usr/bin/virsh -c qemu:///system warning: no loadable sections found in added symbol-file system-supplied DSO at 0x7ffff7ffa000 warning: Could not load shared library symbols for linux-vdso.so.1. Do you need "set solib-search-path" or "set sysroot"? [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib64/libthread_db.so.1". [New Thread 0x7fffeffcf700 (LWP 17555)] Welcome to virsh, the virtualization interactive terminal. Type: 'help' for help with commands 'quit' to quit virsh # list ^C (hangs there..... ) Program received signal SIGINT, Interrupt. 0x00007ffff428691d in poll () from /lib64/libc.so.6 (gdb) bt #0 0x00007ffff428691d in poll () from /lib64/libc.so.6 #1 0x00007ffff7a32918 in virNetClientIOEventLoop (client=0x55555587a1c0, thiscall=0x55555587a150) at rpc/virnetclient.c:1527 #2 0x00007ffff7a33203 in virNetClientIO (client=0x55555587a1c0, thiscall=0x55555587a150) at rpc/virnetclient.c:1799 #3 0x00007ffff7a33af7 in virNetClientSendInternal (client=0x55555587a1c0, msg=0x55555587a9d0, expectReply=true, nonBlock=false) at rpc/virnetclient.c:1975 #4 0x00007ffff7a33b8b in virNetClientSendWithReply (client=0x55555587a1c0, msg=0x55555587a9d0) at rpc/virnetclient.c:2003 #5 0x00007ffff7a34a86 in virNetClientProgramCall (prog=0x55555587a440, client=0x55555587a1c0, serial=0, proc=66, noutfds=0, outfds=0x0, ninfds=0x0, infds=0x0, args_filter=0x7ffff42be510 <xdr_void>, args=0x0, ret_filter=0x7ffff7a277ba <xdr_remote_auth_list_ret>, ret=0x7fffffffd580) at rpc/virnetclientprogram.c:331 #6 0x00007ffff7a1da27 in callFull (conn=0x555555858610, priv=0x555555879cb0, flags=0, fdin=0x0, fdinlen=0, fdout=0x0, fdoutlen=0x0, proc_nr=66, args_filter=0x7ffff42be510 <xdr_void>, args=0x0, ret_filter=0x7ffff7a277ba <xdr_remote_auth_list_ret>, ret=0x7fffffffd580 "") at remote/remote_driver.c:5604 #7 0x00007ffff7a1daf4 in call (conn=0x555555858610, priv=0x555555879cb0, flags=0, proc_nr=66, args_filter=0x7ffff42be510 <xdr_void>, args=0x0, ret_filter=0x7ffff7a277ba <xdr_remote_auth_list_ret>, ret=0x7fffffffd580 "") at remote/remote_driver.c:5626 #8 0x00007ffff7a09618 in remoteAuthenticate (conn=0x555555858610, priv=0x555555879cb0, auth=0x7ffff7dd4640 <virConnectAuthDefault>, authtype=0x0) at remote/remote_driver.c:3483 #9 0x00007ffff7a029c2 in doRemoteOpen (conn=0x555555858610, priv=0x555555879cb0, auth=0x7ffff7dd4640 <virConnectAuthDefault>, flags=0) at remote/remote_driver.c:799 #10 0x00007ffff7a03302 in remoteOpen (conn=0x555555858610, auth=0x7ffff7dd4640 <virConnectAuthDefault>, flags=0) at remote/remote_driver.c:997 #11 0x00007ffff79b5a0a in do_open (name=0x555555850780 "qemu:///system", auth=0x7ffff7dd4640 <virConnectAuthDefault>, flags=0) at libvirt.c:1201 #12 0x00007ffff79b648e in virConnectOpenAuth (name=0x555555850780 "qemu:///system", auth=0x7ffff7dd4640 <virConnectAuthDefault>, flags=0) at libvirt.c:1441 #13 0x0000555555574975 in vshReconnect (ctl=0x7fffffffd9b0) at virsh.c:338 #14 0x0000555555577d48 in vshCommandRun (ctl=0x7fffffffd9b0, cmd=0x55555586a400) at virsh.c:1748 #15 0x000055555557b4c6 in main (argc=3, argv=0x7fffffffdb48) at virsh.c:3222 (gdb)